As a temperature sensor, the resistance of thermal resistor can be varied under the change of temperature. WMTR-X thermal resistor is used to measure the temperature of liquid, steam, gas and the solid surface ranging -200°C to 500°C. It is noted for their flexibility, wear resistance, vibration resistance and high temperature resistance. The outer protective tube of the armored thermo element is made of stainless steel and in which high density oxide is used as the insulating layer, it is pollution resistance and enough mechanical strength, in order to meet the adverse circumstances.

WMTR-X thermal resistor consists of temperature sensitive components, protection tube made of stainless steel, joint box, and fixture for different purposes, with two specifications as single and dual box. It can be output two sets at the same time, used for same electrical signal.

WMTR-X thermal resistor can be made by assembly structure or sheathed structure. In comparison with assembly type, the sheathed is with small diameter, easy to bend, perfect vibration endurance, suitable for the place where assembly type is not suitable.

Technical specification

Resistance value at 0C for thermal resistance temperature sensitive components (R0)

Graduating number Pt100:

Level A  R0 ＝100±0.06Ω

Level B  R0 ＝100±0.12Ω

Heat response time

Nominal pressure

In general, it indicates the static external pressure undertaken by protection tube at normal temperature, without break occurred. Normal trial pressure is 1.5 times of nominal pressure. In fact, allowed nominal pressure is not only related with protection material, diameter, wall thickness, also with structure, installation method, probing depth, and flow and type of measured media.

Insulated resistance

Trial voltage for insulated resistance at normal temperature can be selected as any value within 10~100V, and atmosphere temperature shall be within 15 ~ 35℃. Relative humidity shall be less than 80%. Insulated value at normal temperature shall be greater than 100MΩ.